Most of my motorcycle is carbon fiber and i'm sure it's a lot cheaper to build big parts, flat parts, tubes, etc. Carbon fiber is made from layers of carbon fiber material and not pouring a melted liquid into a mold and waiting for it to harden. Its just such an intricate piece to make. Usually for cheap things they make it in steel and wrap it in a thin layer of carbon fiber. Something like a bike frame is much easier to make in carbon fiber than something like a watch case. We'll definitely have to wait and see.